IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Regular Section
Feedback Bandwidth Allocation for Users under Different Types of Channels in Multi-Antenna Systems
Lv DINGWei XUBin JIANGXiqi GAO
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2010 Volume E93.B Issue 7 Pages 1980-1983

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Abstract

This paper considers an optimized limited feedback design for a multi-antenna system serving multiple users under different types of channels: Rayleigh distributed and line-of-sight distributed channels. Since the users are asymmetric, we propose an optimized feedback bandwidth allocation scheme for users under a total feedback rate constraint. The allocation scheme is designed according to the long-term channel type information of users, and thus it can be efficiently implemented. Numerical results verify the effectiveness of our proposed scheme.

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© 2010 The Institute of Electronics, Information and Communication Engineers
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